Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/pygments/lexers/tcl.py: 94%

1""" 

2 pygments.lexers.tcl 

3 ~~~~~~~~~~~~~~~~~~~ 

4 

5 Lexers for Tcl and related languages. 

6 

7 :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS. 

8 :license: BSD, see LICENSE for details. 

9""" 

10 

11from pygments.lexer import RegexLexer, include, words 

12from pygments.token import Text, Comment, Operator, Keyword, Name, String, \ 

13 Number, Whitespace 

14from pygments.util import shebang_matches 

15 

16__all__ = ['TclLexer'] 

17 

18 

19class TclLexer(RegexLexer): 

20 """ 

21 For Tcl source code. 

22 

23 .. versionadded:: 0.10 

24 """ 

25 

26 keyword_cmds_re = words(( 

27 'after', 'apply', 'array', 'break', 'catch', 'continue', 'elseif', 

28 'else', 'error', 'eval', 'expr', 'for', 'foreach', 'global', 'if', 

29 'namespace', 'proc', 'rename', 'return', 'set', 'switch', 'then', 

30 'trace', 'unset', 'update', 'uplevel', 'upvar', 'variable', 'vwait', 

31 'while'), prefix=r'\b', suffix=r'\b') 

32 

33 builtin_cmds_re = words(( 

34 'append', 'bgerror', 'binary', 'cd', 'chan', 'clock', 'close', 

35 'concat', 'dde', 'dict', 'encoding', 'eof', 'exec', 'exit', 'fblocked', 

36 'fconfigure', 'fcopy', 'file', 'fileevent', 'flush', 'format', 'gets', 

37 'glob', 'history', 'http', 'incr', 'info', 'interp', 'join', 'lappend', 

38 'lassign', 'lindex', 'linsert', 'list', 'llength', 'load', 'loadTk', 

39 'lrange', 'lrepeat', 'lreplace', 'lreverse', 'lsearch', 'lset', 'lsort', 

40 'mathfunc', 'mathop', 'memory', 'msgcat', 'open', 'package', 'pid', 

41 'pkg::create', 'pkg_mkIndex', 'platform', 'platform::shell', 'puts', 

42 'pwd', 're_syntax', 'read', 'refchan', 'regexp', 'registry', 'regsub', 

43 'scan', 'seek', 'socket', 'source', 'split', 'string', 'subst', 'tell', 

44 'time', 'tm', 'unknown', 'unload'), prefix=r'\b', suffix=r'\b') 

45 

46 name = 'Tcl' 

47 url = 'https://www.tcl.tk/about/language.html' 

48 aliases = ['tcl'] 

49 filenames = ['*.tcl', '*.rvt'] 

50 mimetypes = ['text/x-tcl', 'text/x-script.tcl', 'application/x-tcl'] 

51 

52 def _gen_command_rules(keyword_cmds_re, builtin_cmds_re, context=""): 

53 return [ 

54 (keyword_cmds_re, Keyword, 'params' + context), 

55 (builtin_cmds_re, Name.Builtin, 'params' + context), 

56 (r'([\w.-]+)', Name.Variable, 'params' + context), 

57 (r'#', Comment, 'comment'), 

58 ] 

59 

60 tokens = { 

61 'root': [ 

62 include('command'), 

63 include('basic'), 

64 include('data'), 

65 (r'\}', Keyword), # HACK: somehow we miscounted our braces 

66 ], 

67 'command': _gen_command_rules(keyword_cmds_re, builtin_cmds_re), 

68 'command-in-brace': _gen_command_rules(keyword_cmds_re, 

69 builtin_cmds_re, 

70 "-in-brace"), 

71 'command-in-bracket': _gen_command_rules(keyword_cmds_re, 

72 builtin_cmds_re, 

73 "-in-bracket"), 

74 'command-in-paren': _gen_command_rules(keyword_cmds_re, 

75 builtin_cmds_re, 

76 "-in-paren"), 

77 'basic': [ 

78 (r'\(', Keyword, 'paren'), 

79 (r'\[', Keyword, 'bracket'), 

80 (r'\{', Keyword, 'brace'), 

81 (r'"', String.Double, 'string'), 

82 (r'(eq|ne|in|ni)\b', Operator.Word), 

83 (r'!=|==|<<|>>|<=|>=|&&|\|\||\*\*|[-+~!*/%<>&^|?:]', Operator), 

84 ], 

85 'data': [ 

86 (r'\s+', Whitespace), 

87 (r'0x[a-fA-F0-9]+', Number.Hex), 

88 (r'0[0-7]+', Number.Oct), 

89 (r'\d+\.\d+', Number.Float), 

90 (r'\d+', Number.Integer), 

91 (r'\$[\w.:-]+', Name.Variable), 

92 (r'\$\{[\w.:-]+\}', Name.Variable), 

93 (r'[\w.,@:-]+', Text), 

94 ], 

95 'params': [ 

96 (r';', Keyword, '#pop'), 

97 (r'\n', Text, '#pop'), 

98 (r'(else|elseif|then)\b', Keyword), 

99 include('basic'), 

100 include('data'), 

101 ], 

102 'params-in-brace': [ 

103 (r'\}', Keyword, ('#pop', '#pop')), 

104 include('params') 

105 ], 

106 'params-in-paren': [ 

107 (r'\)', Keyword, ('#pop', '#pop')), 

108 include('params') 

109 ], 

110 'params-in-bracket': [ 

111 (r'\]', Keyword, ('#pop', '#pop')), 

112 include('params') 

113 ], 

114 'string': [ 

115 (r'\[', String.Double, 'string-square'), 

116 (r'(?s)(\\\\|\\[0-7]+|\\.|[^"\\])', String.Double), 

117 (r'"', String.Double, '#pop') 

118 ], 

119 'string-square': [ 

120 (r'\[', String.Double, 'string-square'), 

121 (r'(?s)(\\\\|\\[0-7]+|\\.|\\\n|[^\]\\])', String.Double), 

122 (r'\]', String.Double, '#pop') 

123 ], 

124 'brace': [ 

125 (r'\}', Keyword, '#pop'), 

126 include('command-in-brace'), 

127 include('basic'), 

128 include('data'), 

129 ], 

130 'paren': [ 

131 (r'\)', Keyword, '#pop'), 

132 include('command-in-paren'), 

133 include('basic'), 

134 include('data'), 

135 ], 

136 'bracket': [ 

137 (r'\]', Keyword, '#pop'), 

138 include('command-in-bracket'), 

139 include('basic'), 

140 include('data'), 

141 ], 

142 'comment': [ 

143 (r'.*[^\\]\n', Comment, '#pop'), 

144 (r'.*\\\n', Comment), 

145 ], 

146 } 

147 

148 def analyse_text(text): 

149 return shebang_matches(text, r'(tcl)')